There are several ways to analyse the stock price movements, in Technical Analysis price patterns are also powerful technical patterns one can depend upon.
We have many price patterns, Double Tops, Double Bottoms, Head and Shoulder, Inverted Head and Shoulder, Cup or rounding bottom pattern, Flag and inverted Flat patter, Triangle pattern etc.
Professional traders use them for their trades using different price patterns, each one them got different character and conditions to be met while before taking decision.